# Utility

- [ChestMap](/api/utility/chestmap.md): Allows you to easily and efficiently (remember full/empty chests) find and open chests by criteria. Create with 'Context.Functions.CreateChestMap()'.
- [LocationBlacklistCollection](/api/utility/locationblacklistcollection.md): Allows you to "blacklist" (set as invalid) locations for a certain amount of times. Create with 'LocationBlacklistCollection.CreatePerBot(...)' or 'LocationBlacklistCollection.CreateGlobal(...)'.
- [LocationWhitelistCollection](/api/utility/locationwhitelistcollection.md): Allows you to "whitelist" a location for a certain bot, but "blacklist" it for others. Create with 'LocationWhitelistCollection.Create(...)'.